CN203585263U - Device for adjusting tooth direction gap between gear and rack - Google Patents
Device for adjusting tooth direction gap between gear and rack Download PDFInfo
- Publication number
- CN203585263U CN203585263U CN201320635094.0U CN201320635094U CN203585263U CN 203585263 U CN203585263 U CN 203585263U CN 201320635094 U CN201320635094 U CN 201320635094U CN 203585263 U CN203585263 U CN 203585263U
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- adjusting
- screw rod
- adjusting screw
- endoporus
- cone
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Abstract
The utility model discloses a device for adjusting the tooth direction gap between a gear and a rack. The device comprises a steering mechanism shell, an adjusting screw rod and an eccentric bearing which is arranged in the steering mechanism shell. An adjusting groove is formed in the outer wall of the eccentric bearing, a boss is arranged on the steering mechanism shell, an adjusting inner hole is formed in the boss, the central axis of the adjusting inner hole and the cross section of the eccentric bearing are coplanar or parallel, the adjusting inner hole is communicated with the adjusting groove, the adjusting screw rod is matched with the adjusting inner hole, one end of the adjusting screw rod is a cone, external threads are arranged on the outer circumferential surface of the cone, internal threads are arranged on the hole wall of the open end of the adjusting inner hole, and the external threads on the cone are matched with the internal threads on the adjusting inner hole. Through the method, the tooth direction gap between the gear and the rack can be conveniently adjusted, and the device is simple in structure, fewer in components, convenient to assemble and high in production efficiency.
Description
Technical field
The utility model relates to a kind of gear rack teeth directional lash adjusting device of automotive steering structure.
Background technique
The setting of gear rack teeth directional gap parameter is a very important job of Design of Steering Mechanism, and teeth directional gap is large, and steering equipment produces obvious noise; Teeth directional gap is little, and it is large that flank engagement frictional force becomes, and directly affects steering equipment's moment of torsion input performance.
Gear rack teeth directional slack adjuster traditionally as shown in Figure 1, screw the adjusting plug screw (1) through regulating block (50), regulate plug screw (1) Compress Spring (6), spring (6) is compressed can promote to regulate briquetting (2) to move forward promotion tooth bar (4) near gear (3), make the teeth directional gap smaller between tooth bar (4) and gear (3), otherwise unscrew, regulate plug screw (1) to become greatly in the teeth directional gap between tooth bar (4) and gear (3).This controlling device reliability is high, and stable performance regulates simply in technique simultaneously, but that shortcoming is assembly is many, assembling inconvenience, and cost is high, wherein adopts the torsion spring controlling device price of torsional mode belt wear compensation expensive especially.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of gear rack teeth directional lash adjusting device, this gear rack teeth directional lash adjusting device is by adjusting the teeth directional gap between wheel and rack with capacity eccentric bearing and adjusting screw rod, simple in structure, assembly is few, easy to assembly, manufacturing efficiency is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gear rack teeth directional lash adjusting device is provided, it comprises steering equipment's housing, adjusting screw rod and be arranged at the capacity eccentric bearing in described steering equipment housing, on the outer wall of described capacity eccentric bearing, be provided with regulating tank, on described steering equipment housing, be provided with boss, on described boss, be provided with adjusting endoporus, the central axis of described adjusting endoporus is coplanar or parallel with the cross section of described capacity eccentric bearing, described adjusting endoporus is connected with described regulating tank, described adjusting screw rod and described adjusting endoporus match, one end of described adjusting screw rod is cone, on the outer circumferential face of this cone, be provided with outside thread, on the opening end hole wall of described adjusting endoporus, be provided with internal thread, described outside thread on described cone and the described internal thread of described adjusting endoporus match.
In preferred embodiment of the utility model, the other end of described adjusting screw rod is polished rod, and the end of described polished rod is spherical.
In preferred embodiment of the utility model, on the end face of described cone one end of described adjusting screw rod, be provided with interior hexagonal counterbore or cross recess or straight groove.
In preferred embodiment of the utility model, described regulating tank is hole shape, and coaxial and big or small and described adjusting screw rod matches with described adjusting endoporus in this hole.
The beneficial effects of the utility model are: this gear rack teeth directional lash adjusting device is by adjusting the teeth directional gap between wheel and rack with capacity eccentric bearing and adjusting screw rod, simple in structure, assembly is few, assembling and easy to adjust, and manufacturing efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the schematic diagram of gear rack teeth directional lash adjusting device of the prior art;
Fig. 2 is the utility model gear rack teeth directional lash adjusting device embodiment's structural representation;
Fig. 3 is the structural representation of adjusting screw rod in Fig. 2.
In figure, the mark of each parts is as follows: 1, regulate plug screw, 2, regulate briquetting, 3, gear, 4, tooth bar, 5, boss, 6, regulate endoporus, 7, adjusting screw rod, 8, regulating tank, 9, capacity eccentric bearing, 10, steering equipment's housing, 20, cone, 21, interior hexagonal counterbore, 50, regulating block, 60, spring.
Embodiment
To the technological scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2 and Fig. 3, gear rack teeth directional lash adjusting device of the present utility model comprises steering equipment's housing 10, adjusting screw rod 7 and be arranged at the capacity eccentric bearing 9 in described steering equipment housing 10, on the outer wall of described capacity eccentric bearing 9, be provided with regulating tank 8, on described steering equipment housing 10, be provided with boss 5, on described boss 5, be provided with and regulate endoporus 6, the central axis of described adjusting endoporus 6 is coplanar or parallel with the cross section of described capacity eccentric bearing 9, described adjusting endoporus 6 is connected with described regulating tank 8, described adjusting screw rod 7 matches with described adjusting endoporus 6, one end of described adjusting screw rod 7 is cone 20, on the outer circumferential face of this cone 20, be provided with outside thread, on the opening end hole wall of described adjusting endoporus 6, be provided with internal thread, described outside thread on described cone 20 and the described internal thread of described adjusting endoporus match.
Preferably, the outside thread arranging on the outer circumferential face of described cone 20 is outer cone screw thread.
Preferably, the other end of described adjusting screw rod 7 is polished rod, and the end of described polished rod is spherical.
Preferably, be provided with interior hexagonal counterbore or cross recess or straight groove 21 on the end face of described cone 20 one end of described adjusting screw rod 7, screw-driver easy to use or spanner screw adjusting screw rod 7.
Preferably, described regulating tank 8 is hole shape, and coaxial and big or small and described adjusting screw rod 7 matches with described adjusting endoporus 6 in this hole.
Further, during assembling, the polished end of adjusting screw rod 7 is inserted to cone 20 ends that regulate endoporus 6 and screw adjusting screw rod 7 polished end of adjusting screw rod 7 is deep in regulating tank 8, the spheric end of polished rod props up the wall of regulating tank 8.When continuing to tighten adjusting screw rod 7, the polished end of adjusting screw rod 7 can promote capacity eccentric bearing 9 in the interior rotation of steering equipment's housing 10, because steering equipment's housing 10 is fixed, so will make to be arranged on the and then mobile position of tooth bar 4 in the axis hole of capacity eccentric bearing 9 when capacity eccentric bearing 9 rotates, make the teeth directional gap smaller of tooth bar 4 and meshed gears 3, reach the object in the teeth directional gap between regulating tooth wheel and rack.
Further, the outside thread on cone 20 ends of adjusting screw rod 7 has seal action, during use, for making sealing effect better, is coated with sealer outside in tapered tread.Compare common cylinder screw thread, outer cone screw thread has better seal action, during assembling, need to not seal with the happy safe glue of adjusting endoporus 6 openings painting in the end of exposing of adjusting screw rod 7 again, has saved the time of assembling, has improved efficiency of assembling.
In addition, adjusting screw rod 7 adopts powder metallurgy pressing to produce, and cost is low, and efficiency is high.
Be appreciated that adjusting screw rod 7 also can make segmented, be about to adjusting screw rod 7 and make one section of polished rod and one section with externally threaded two-part.By threaded together section polish rod end, to withstand capacity eccentric bearing 9 to make its rotation equally, drive the tooth bar in the axis hole that is arranged on capacity eccentric bearing 9 to follow mobile position, make the teeth directional gap smaller of tooth bar and meshed gears, reach the object in the teeth directional gap between regulating tooth wheel and rack.But this method has strengthened the fabricating cost of adjusting screw rod 7, and in assembling, exist polished rod axis and steering equipment's housing 10 to have angle of cut situation, in the long-term using process of steering equipment, just there will be the loosening of polished rod, and then cause the teeth directional gap of adjusting to become large.In addition, this structure also need to seal with the happy safe glue of adjusting endoporus 6 openings painting the end of exposing at adjusting screw rod 7 when assembling, and the happy safe adhesive curing time is longer, compares integrated type adjusting screw rod 7 and has reduced efficiency of assembling.
Be different from prior art, gear rack teeth directional lash adjusting device of the present utility model is by adjusting the teeth directional gap between wheel and rack with capacity eccentric bearing and adjusting screw rod, and simple in structure, assembly is few, easy to assembly, and manufacturing efficiency is high.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a gear rack teeth directional lash adjusting device, it is characterized in that: comprise steering equipment's housing, adjusting screw rod and be arranged at the capacity eccentric bearing in described steering equipment housing, on the outer wall of described capacity eccentric bearing, be provided with regulating tank, on described steering equipment housing, be provided with boss, on described boss, be provided with adjusting endoporus, the central axis of described adjusting endoporus is coplanar or parallel with the cross section of described capacity eccentric bearing, described adjusting endoporus is connected with described regulating tank, described adjusting screw rod and described adjusting endoporus match, one end of described adjusting screw rod is cone, on the outer circumferential face of this cone, be provided with outside thread, on the opening end hole wall of described adjusting endoporus, be provided with internal thread, described outside thread on described cone and the described internal thread of described adjusting endoporus match.
2. gear rack teeth directional lash adjusting device according to claim 1, is characterized in that, the other end of described adjusting screw rod is polished rod.
3. gear rack teeth directional lash adjusting device according to claim 2, is characterized in that, the end of described polished rod is spherical.
4. gear rack teeth directional lash adjusting device according to claim 1, is characterized in that, on the end face of described cone one end of described adjusting screw rod, is provided with interior hexagonal counterbore or cross recess or straight groove.
5. gear rack teeth directional lash adjusting device according to claim 1, is characterized in that, described regulating tank is hole shape, and coaxial and big or small and described adjusting screw rod matches with described adjusting endoporus in this hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635094.0U CN203585263U (en) | 2013-10-15 | 2013-10-15 | Device for adjusting tooth direction gap between gear and rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635094.0U CN203585263U (en) | 2013-10-15 | 2013-10-15 | Device for adjusting tooth direction gap between gear and rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585263U true CN203585263U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320635094.0U Expired - Fee Related CN203585263U (en) | 2013-10-15 | 2013-10-15 | Device for adjusting tooth direction gap between gear and rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312540A (en) * | 2016-11-09 | 2017-01-11 | 湖北科技学院 | In-phase adjusting method for eccentric bearing in steering gear |
-
2013
- 2013-10-15 CN CN201320635094.0U patent/CN203585263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312540A (en) * | 2016-11-09 | 2017-01-11 | 湖北科技学院 | In-phase adjusting method for eccentric bearing in steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141015 |
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| EXPY | Termination of patent right or utility model |